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Sunflower

Helianthus annuus

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Sunflowers are cheerful annual flowers that grow rapidly to impressive heights, producing large yellow flower heads that track the sun. They're easy to grow and a favourite with children.

Sunflower

Common Problems

Select the problem your Sunflower is experiencing to get a treatment guide.

Care Guide

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Light
Full sun — absolutely essential.
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Water
Moderately. Deep but infrequent once established.
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Soil
Well-draining soil. Tolerant of poor soil.
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Fertiliser
Avoid excess nitrogen (promotes leaves over flowers). Low-nitrogen feed.
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Temperature
18–35°C. Frost-sensitive.
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Humidity
Tolerates low humidity.

Toxicity

check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children

Safe for humans and pets.

Common Diseases

Common Pests

Similar Plants

Frequently Asked Questions

How tall do sunflowers grow?

Dwarf varieties reach 30–60cm. Giant varieties can exceed 3–4m in ideal conditions.

Sunflower Care Guide — Helianthus annuus | GreenScout